MGM Resorts International has sued hundreds of victims of the deadliest mass shooting in modern US history in a bid to avoid liability for the gunfire that rained down from its Mandalay Bay casino-resort in Las Vegas.

The company argues in lawsuits filed Friday in Nevada and California that it has “no liability of any kind” to survivors or families of slain victims under a federal law enacted after the September 11, 2001 terrorist attacks.